#!/bin/bash

# Constants
# SEED=20230920
SEED=0
# INPUT_FILE="${DIR}/arrangement_$SEED.txt"
DIR=/teamspace/studios/this_studio/out_sortcolors
INPUT_FILE="${DIR}/arrangement_grid.txt"
# OUTPUT_IMAGE="${DIR}/circle_composite_$SEED.png"
TYPE=circle
OUTPUT_IMAGE="${DIR}/${TYPE}_composite_grid.png"
DPI=100
CANVAS_SIZE=$((72*$DPI))  # 72 inches
CIRCLE_IMAGE="${DIR}/hsv/_sorted_colors_circle.png"

identify $CIRCLE_IMAGE

# PREP
echo "Building ops"
# Build the composite operations string
composite_ops=""
idx=1
while IFS=, read -r x y; do
    # Translate so that (0,0) becomes the center of the canvas
    fx=$(echo "$x*$DPI + $CANVAS_SIZE/2" | bc -l)
    fy=$(echo "$CANVAS_SIZE/2 - $y*$DPI" | bc -l)

    # Convert the final float values to integers
    ix=$(printf "%.0f" "$fx")
    iy=$(printf "%.0f" "$fy")
    if [[ idx -eq 42 ]]; then
        CIRCLE_IMAGE="${DIR}/hsv_sorted_colors_${TYPE}.png"
    else
        idx_str=$(printf "%02d" "$idx")
        CIRCLE_IMAGE="${DIR}/${idx_str}umap_sorted_colors_${TYPE}.png"
        # CIRCLE_IMAGE="${DIR}/hsv_sorted_colors_${TYPE}.png"
    fi

    # Add to the composite operations string
    composite_ops="$composite_ops \( $CIRCLE_IMAGE \) -compose Over -geometry +$ix+$iy -composite"
    idx=$((idx+1))

done < $INPUT_FILE

# COMPOSITE
echo "Compositing"
# Use convert with the built composite operations string
eval "convert -units PixelsPerInch \
    -size ${CANVAS_SIZE}x${CANVAS_SIZE} xc:white \
    $composite_ops \
    -density $DPI \
    $OUTPUT_IMAGE"

echo "Saved $OUTPUT_IMAGE"

# DEBUG
# eval "convert -units PixelsPerInch \
#     $OUTPUT_IMAGE \
#     \( ${DIR}/arrangement_$SEED.png -evaluate Multiply 0.5 \) \
#     -gravity center -composite \
#     -density $DPI \
#     /tmp/debug.png"
# open /tmp/debug.png